A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5910-00-078-9208
NSN 5935-01-559-6658
NSN 5920-00-943-9228
NSN 6150-00-899-5690
NSN 5996-01-270-3679
NSN 4140-01-491-9655
NSN 5920-01-010-2920
NSN 5905-01-088-7951
NSN 5855-00-586-6255
NSN 5996-01-065-0939
NSN 5975-01-055-7761
NSN 5920-01-222-5107